The KPA500 has a linear PSU and uses a conservatively sized toroidal
mains transformer followed by a pair substantial filter capacitors
It's over and under-voltage protected by firmware, I strongly suspect it
would not have any particular issues with a poorly shaped input mains
waveform.
If the generator voltage regulation is very poor indeed then the
firmware may take action to protect the KPA500 from damage by taking it
off line or protectively shutting it down.
I hope to have my KPA500 on line for the UK elecraft net tomorrow
morning.
73
Brendan EI6IZ
On Sat, 2011-02-19 at 12:33 +0000, Dave, G4AON wrote:
> I run an Acom 1000 portable from a Yamaha EF2800i generator. The
> generator does cough a little on CW but the voltage remains steady.
> Given the high value of the radio and amplifier I would not skimp on a
> generator. The output of the generator on an oscilloscope is cleaner
> than the mains supply. I am sure a generator of this type would be ideal
> for the KPA500.
>
> 73 Dave, G4AON
> ------------------------
> However, small generators I have seen do not produce mains-quality sinewave
> output: it's more triangular and I just want to know if Elecraft are happy
> with their kit running on this sort of supply which is also varying in
> voltage and frequency. I can think of several mechanisms to stress a psu.
>
> David
> G3UNA
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73
Brendan EI6IZ
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